$Adapter = ""
#Take down all the Adapters
foreach($a in Get-NetAdapter)
{
    $Adapter += "," + $a.Name ;
    Disable-NetAdapter -Name $a.Name;
}

#Reset Adaptors settings
netsh int ip reset C:\netsh.log.txt
netsh winsock reset

#empty ARP tables
arp -d *

#flush DNS
ipconfig /flushdns

#bring Adapter back up
foreach($a in $Adapter.SubString(1).Split(","))
{
    Enable-NetAdapter -Name $a;
}